Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Dan asked in Science & MathematicsPhysics · 7 years ago

How do I answer this centripetal acceleration problem?

Please show the general steps/method.

Update:

Someone else? Please I know the formulas I'm just not sure how to apply them.

Attachment image

2 Answers

Relevance
  • 7 years ago
    Favorite Answer

    The thread is 2.8m. long, the angle from centre is 31 degrees.

    Radius of described circle = (sin 31 x 2.8) = 1.442 metres.

    (tan 31 x g) = centripetal acceleration of 5.89m/sec^2.

    Force = (ma) = 6.7 x 5.89, = 39.463N.

    Tangential V = sqrt.(fr/m), = sqrt.(39.463 x 1.442)/6.7 = 2.9m/sec.

  • 7 years ago

    Google brought this up on the first link.

    http://ffden-2.phys.uaf.edu/211_fall2002.web.dir/s...

    Just use the length of the string and the given angle to find the radius of the circle and then just plug and play.

    By the way, I found all of this on google, but really you should have known the equations that would be on this test already.

Still have questions? Get your answers by asking now.